Table 1. Conceptual framework with variables and measures.

Theory	Concept	Variable	Measurement
Symptom management Theory	Symptom experience: Perception of symptoms	HF symptom frequency and severity	HFSS*
	Symptom experience: Evaluation of symptoms	HF symptom frequency and severity	HFSS
	Symptom experience: Response to symptoms	Self care management and confidence	SCHFI*
Interdependence Theory	Correspondence of outcomes: Symptom assessment congruence	HF symptom frequency and severity	HFSS

^*both patient and caregiver filled out these instruments

HF = heart failure

HFSS = heart failure symptom survey

SCHFI = self care of heart failure index